a_mmfcvr.htm


	As filed with the Securities and Exchange Commission on
	February 16, 2017
	Registration No. 2-55091
	811-02608


	SECURITIES AND EXCHANGE COMMISSION
	WASHINGTON, D.C. 20549

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	FORM N-1A
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	REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	/ X /
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	Pre-Effective Amendment No.	/ /
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	Post-Effective Amendment No. 57	/ X /
	and	----
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	REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY	/ X /
	ACT OF 1940	----
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	Amendment No. 53	/ X /
	(Check appropriate box or boxes)	----



	PUTNAM MONEY MARKET FUND
	(Exact name of registrant as specified in charter)

	One Post Office Square, Boston, Massachusetts 02109

	(Address of principal executive offices)

	Registrants' Telephone Number, including Area Code
	(617) 292-1000


It is proposed that this filing will become effective (check appropriate box)

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/ /	immediately upon filing pursuant to paragraph (b)
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/ X /	on January 30, 2017 pursuant to paragraph (b)
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/ /	60 days after filing pursuant to paragraph (a) (1)
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/ /	on (date) pursuant to paragraph (a) (1)
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/ /	75 days after filing pursuant to paragraph (a) (2)
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/ /	on (date) pursuant to paragraph (a) (2) of Rule 485.
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If appropriate, check the following box:

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/ /	this post-effective amendment designates a new effective date for a previously filed post-
----	effective amendment.


	ROBERT T. BURNS, Vice President
	PUTNAM MONEY MARKET FUND
	One Post Office Square
	Boston, Massachusetts 02109
	(Name and address of agent for service)
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	Copy to:
	BRYAN CHEGWIDDEN, Esquire
	ROPES & GRAY LLP
	1211 Avenue of the Americas
	New York, New York 10036

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Boston, and The Commonwealth of Massachusetts, on the 16^th day of February, 2017.

By: /s/ Jonathan S. Horwitz,
Executive Vice President, Principal Executive Officer and Compliance Liaison

Pursuant to the requirements of the Securities Act of 1933, as amended, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated:

Signature	Title
Jameson A. Baxter*	Chair, Board of Trustees
Kenneth R. Leibler*	Vice Chair, Board of Trustees
Robert L. Reynolds*	President and Trustee
Jonathan S. Horwitz*	Executive Vice President, Principal Executive
	Officer and Compliance Liaison
Janet C. Smith**	Vice President, Principal Financial Officer, Principal Accounting
	Officer and Assistant Treasurer
Liaquat Ahamed*	Trustee
Ravi Akhoury*	Trustee
Barbara M. Baumann*	Trustee
Robert J. Darretta*	Trustee
Katinka Domotorffy*	Trustee
John A. Hill*	Trustee
Paul L. Joskow*	Trustee
Robert E. Patterson*	Trustee
George Putnam, III*	Trustee